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-rw-r--r--include/uapi/linux/rseq.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/rseq.h b/include/uapi/linux/rseq.h
index 05d3c4cdeb40..1cb90a435c5c 100644
--- a/include/uapi/linux/rseq.h
+++ b/include/uapi/linux/rseq.h
@@ -132,6 +132,14 @@ struct rseq {
__u32 flags;
/*
+ * Restartable sequences node_id field. Updated by the kernel. Read by
+ * user-space with single-copy atomicity semantics. This field should
+ * only be read by the thread which registered this data structure.
+ * Aligned on 32-bit. Contains the current NUMA node ID.
+ */
+ __u32 node_id;
+
+ /*
* Flexible array member at end of structure, after last feature field.
*/
char end[];